mirror of
https://github.com/AlexMacocian/MonoGame.Extended.git
synced 2026-07-24 12:06:37 +00:00
Dylan Wilson
56 lines
1.8 KiB
C#
56 lines
1.8 KiB
C#
using JamGame.Components;
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using Microsoft.Xna.Framework;
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using MonoGame.Extended;
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using MonoGame.Extended.Entities;
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using MonoGame.Extended.Entities.Systems;
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namespace JamGame.Systems
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{
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public class CollisionSystem : EntityUpdateSystem
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{
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private ComponentMapper<Body> _bodyMapper;
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private ComponentMapper<Transform2> _transformMapper;
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public CollisionSystem()
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: base(Aspect.All(typeof(Body), typeof(Transform2)))
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{
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}
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public override void Initialize(IComponentMapperService mapperService)
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{
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_bodyMapper = mapperService.GetMapper<Body>();
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_transformMapper = mapperService.GetMapper<Transform2>();
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}
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public override void Update(GameTime gameTime)
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{
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foreach (var entityA in ActiveEntities)
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{
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var bodyA = _bodyMapper.Get(entityA);
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var transformA = _transformMapper.Get(entityA);
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var rectangleA = GetBoundingRectangle(transformA, bodyA);
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bodyA.IsHit = false;
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foreach (var entityB in ActiveEntities)
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{
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var bodyB = _bodyMapper.Get(entityB);
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var transformB = _transformMapper.Get(entityB);
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var rectangleB = GetBoundingRectangle(transformB, bodyB);
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if (entityA != entityB && rectangleA.Intersects(rectangleB))
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{
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bodyA.IsHit = true;
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bodyB.IsHit = true;
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}
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}
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}
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}
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private static RectangleF GetBoundingRectangle(Transform2 transform, Body body)
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{
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return new RectangleF(transform.Position.X - body.Size.Width / 2f, transform.Position.Y + body.Size.Height / 2f, body.Size.Width, body.Size.Height);
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}
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}
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} |